Modeling Bronchial Epithelium Modifications Associated With COPD Using iPS

The bronchial biopsy is part of this study's inclusion criteria and is required during routine care for the patient. Bronchial fibroscopy is performed under general or local anesthesia. Biopsies are performed using forceps and according to current recommendations. One biopsy will be fixed immediately in RCL2 medium while the others (between 3 and 6) will be kept in isotonic saline and rapidly prepared for air-liquid-interface (ALI) cell culture.

The skin biopsy will be performed after local anesthesia by hypodermic injection of a 1% Xylocaine solution. A single sample of a skin fragment about 3 mm in diameter will be necessary.

The blood sample will be taken at the end of the cutaneous biospy, approximately 20 ml of blood will be collected.